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The paper is concerned with the study of the damage resistance of laminated composite helicopter blades subjected to impact loading. Dynamic stress intensity factors are determined for composite laminate and separate layers using combined theoretical and experimental approach. The effect of the projectile size on the damage tolerance of composite blade is investigated and tolerable sizes of the defects...
The application of the methods of nonlinear fracture mechanics to the analysis of the hybrid polymer composites and structural components is discussed in this paper. Both the theoretical and experimental approaches have been utilised for fracture analysis and damage tolerance estimation. The analysis is based on the combination of J-contour integral technique and methods of nonlinear fracture mechanics...
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